Fix item lookup (fixes #61663)

src/vs/workbench/browser/parts/editor/editorStatus.ts

@@ -1236,13 +1236,14 @@ export class ChangeEncodingAction extends Action {
 							return { id: key, label: SUPPORTED_ENCODINGS[key].labelLong, description: key };
 						});
 
+					const items = picks.slice() as IQuickPickItem[];
+
 					// If we have a guessed encoding, show it first unless it matches the configured encoding
 					if (guessedEncoding && configuredEncoding !== guessedEncoding && SUPPORTED_ENCODINGS[guessedEncoding]) {
 						picks.unshift({ type: 'separator' });
 						picks.unshift({ id: guessedEncoding, label: SUPPORTED_ENCODINGS[guessedEncoding].labelLong, description: nls.localize('guessedEncoding', "Guessed from content") });
 					}
 
-					const items = picks.filter(p => p.type !== 'separator') as IQuickPickItem[];
 					return this.quickInputService.pick(picks, {
 						placeHolder: isReopenWithEncoding ? nls.localize('pickEncodingForReopen', "Select File Encoding to Reopen File") : nls.localize('pickEncodingForSave', "Select File Encoding to Save with"),
 						activeItem: items[typeof directMatchIndex === 'number' ? directMatchIndex : typeof aliasMatchIndex === 'number' ? aliasMatchIndex : -1]